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  <div class="section" id="numpy-busday-count">
<h1>numpy.busday_count<a class="headerlink" href="#numpy-busday-count" title="Permalink to this headline">¶</a></h1>
<dl class="function">
<dt id="numpy.busday_count">
<code class="sig-prename descclassname">numpy.</code><code class="sig-name descname">busday_count</code><span class="sig-paren">(</span><em class="sig-param">begindates</em>, <em class="sig-param">enddates</em>, <em class="sig-param">weekmask='1111100'</em>, <em class="sig-param">holidays=[]</em>, <em class="sig-param">busdaycal=None</em>, <em class="sig-param">out=None</em><span class="sig-paren">)</span><a class="headerlink" href="#numpy.busday_count" title="Permalink to this definition">¶</a></dt>
<dd><p>Counts the number of valid days between <em class="xref py py-obj">begindates</em> and
<em class="xref py py-obj">enddates</em>, not including the day of <em class="xref py py-obj">enddates</em>.</p>
<p>If <code class="docutils literal notranslate"><span class="pre">enddates</span></code> specifies a date value that is earlier than the
corresponding <code class="docutils literal notranslate"><span class="pre">begindates</span></code> date value, the count will be negative.</p>
<div class="versionadded">
<p><span class="versionmodified added">New in version 1.7.0.</span></p>
</div>
<dl class="field-list simple">
<dt class="field-odd">Parameters</dt>
<dd class="field-odd"><dl class="simple">
<dt><strong>begindates</strong><span class="classifier">array_like of datetime64[D]</span></dt><dd><p>The array of the first dates for counting.</p>
</dd>
<dt><strong>enddates</strong><span class="classifier">array_like of datetime64[D]</span></dt><dd><p>The array of the end dates for counting, which are excluded
from the count themselves.</p>
</dd>
<dt><strong>weekmask</strong><span class="classifier">str or array_like of bool, optional</span></dt><dd><p>A seven-element array indicating which of Monday through Sunday are
valid days. May be specified as a length-seven list or array, like
[1,1,1,1,1,0,0]; a length-seven string, like ‘1111100’; or a string
like “Mon Tue Wed Thu Fri”, made up of 3-character abbreviations for
weekdays, optionally separated by white space. Valid abbreviations
are: Mon Tue Wed Thu Fri Sat Sun</p>
</dd>
<dt><strong>holidays</strong><span class="classifier">array_like of datetime64[D], optional</span></dt><dd><p>An array of dates to consider as invalid dates.  They may be
specified in any order, and NaT (not-a-time) dates are ignored.
This list is saved in a normalized form that is suited for
fast calculations of valid days.</p>
</dd>
<dt><strong>busdaycal</strong><span class="classifier">busdaycalendar, optional</span></dt><dd><p>A <a class="reference internal" href="numpy.busdaycalendar.html#numpy.busdaycalendar" title="numpy.busdaycalendar"><code class="xref py py-obj docutils literal notranslate"><span class="pre">busdaycalendar</span></code></a> object which specifies the valid days. If this
parameter is provided, neither weekmask nor holidays may be
provided.</p>
</dd>
<dt><strong>out</strong><span class="classifier">array of int, optional</span></dt><dd><p>If provided, this array is filled with the result.</p>
</dd>
</dl>
</dd>
<dt class="field-even">Returns</dt>
<dd class="field-even"><dl class="simple">
<dt><strong>out</strong><span class="classifier">array of int</span></dt><dd><p>An array with a shape from broadcasting <code class="docutils literal notranslate"><span class="pre">begindates</span></code> and <code class="docutils literal notranslate"><span class="pre">enddates</span></code>
together, containing the number of valid days between
the begin and end dates.</p>
</dd>
</dl>
</dd>
</dl>
<div class="admonition seealso">
<p class="admonition-title">See also</p>
<dl class="simple">
<dt><a class="reference internal" href="numpy.busdaycalendar.html#numpy.busdaycalendar" title="numpy.busdaycalendar"><code class="xref py py-obj docutils literal notranslate"><span class="pre">busdaycalendar</span></code></a></dt><dd><p>An object that specifies a custom set of valid days.</p>
</dd>
<dt><a class="reference internal" href="numpy.is_busday.html#numpy.is_busday" title="numpy.is_busday"><code class="xref py py-obj docutils literal notranslate"><span class="pre">is_busday</span></code></a></dt><dd><p>Returns a boolean array indicating valid days.</p>
</dd>
<dt><a class="reference internal" href="numpy.busday_offset.html#numpy.busday_offset" title="numpy.busday_offset"><code class="xref py py-obj docutils literal notranslate"><span class="pre">busday_offset</span></code></a></dt><dd><p>Applies an offset counted in valid days.</p>
</dd>
</dl>
</div>
<p class="rubric">Examples</p>
<div class="doctest highlight-default notranslate"><div class="highlight"><pre><span></span><span class="gp">&gt;&gt;&gt; </span><span class="c1"># Number of weekdays in January 2011</span>
<span class="gp">... </span><span class="n">np</span><span class="o">.</span><span class="n">busday_count</span><span class="p">(</span><span class="s1">&#39;2011-01&#39;</span><span class="p">,</span> <span class="s1">&#39;2011-02&#39;</span><span class="p">)</span>
<span class="go">21</span>
<span class="gp">&gt;&gt;&gt; </span><span class="c1"># Number of weekdays in 2011</span>
<span class="gp">&gt;&gt;&gt; </span><span class="n">np</span><span class="o">.</span><span class="n">busday_count</span><span class="p">(</span><span class="s1">&#39;2011&#39;</span><span class="p">,</span> <span class="s1">&#39;2012&#39;</span><span class="p">)</span>
<span class="go">260</span>
<span class="gp">&gt;&gt;&gt; </span><span class="c1"># Number of Saturdays in 2011</span>
<span class="gp">... </span><span class="n">np</span><span class="o">.</span><span class="n">busday_count</span><span class="p">(</span><span class="s1">&#39;2011&#39;</span><span class="p">,</span> <span class="s1">&#39;2012&#39;</span><span class="p">,</span> <span class="n">weekmask</span><span class="o">=</span><span class="s1">&#39;Sat&#39;</span><span class="p">)</span>
<span class="go">53</span>
</pre></div>
</div>
</dd></dl>

</div>


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